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  <title>Sets the flags.</title>

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</div><hr /><div id="regexiterator.setflags" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">RegexIterator::setFlags</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.2.0)</p><p class="refpurpose"><span class="refname">RegexIterator::setFlags</span> &mdash; <span class="dc-title">Sets the flags.</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-regexiterator.setflags-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="type"><span class="type void">void</span></span> <span class="methodname"><strong>RegexIterator::setFlags</strong></span>
    ( <span class="methodparam"><span class="type">int</span> <code class="parameter">$flags</code></span>
   )</div>

  <p class="para rdfs-comment">
   Sets the flags.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-regexiterator.setflags-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">flags</code></em></dt>

     <dd>

      <p class="para">
       The flags to set, a bitmask of class constants.
      </p>
      <p class="para">
       The available flags are listed below. The actual
       meanings of these flags are described in the
       <a href="class.regexiterator.html#regexiterator.constants" class="link">predefined constants</a>.
       <table class="doctable table">
        <caption><strong><a href="class.regexiterator.html" class="classname">RegexIterator</a> flags</strong></caption>
        
         <thead>
          <tr>
           <th>value</th>
           <th>constant</th>
          </tr>

         </thead>

         <tbody class="tbody">
          <tr>
           <td>1</td>
           <td>
            <a href="class.regexiterator.html#regexiterator.constants.use-key" class="link">RegexIterator::USE_KEY</a>
           </td>
          </tr>

         </tbody>
        
       </table>

      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-regexiterator.setflags-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   没有返回值。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-regexiterator.setflags-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="regexiterator.setflags.example.basic">
    <p><strong>Example #1 <span class="methodname"><strong>RegexIterator::setFlags()</strong></span> example</strong></p>
    <div class="example-contents"><p>
     Creates a new RegexIterator that filters all entries whose key starts with &#039;<em>test</em>&#039;.
    </p></div>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$test&nbsp;</span><span style="color: #007700">=&nbsp;array&nbsp;(</span><span style="color: #DD0000">'str1'&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #DD0000">'test&nbsp;1'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'teststr2'&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #DD0000">'another&nbsp;test'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'str3'&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #DD0000">'test&nbsp;123'</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$arrayIterator&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">ArrayIterator</span><span style="color: #007700">(</span><span style="color: #0000BB">$test</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$regexIterator&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">RegexIterator</span><span style="color: #007700">(</span><span style="color: #0000BB">$arrayIterator</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'/^test/'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$regexIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">setFlags</span><span style="color: #007700">(</span><span style="color: #0000BB">RegexIterator</span><span style="color: #007700">::</span><span style="color: #0000BB">USE_KEY</span><span style="color: #007700">);<br /><br />foreach&nbsp;(</span><span style="color: #0000BB">$regexIterator&nbsp;</span><span style="color: #007700">as&nbsp;</span><span style="color: #0000BB">$key&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">$value</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #0000BB">$key&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #DD0000">'&nbsp;=&gt;&nbsp;'&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #0000BB">$value&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
teststr2 =&gt; another test
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-regexiterator.setflags-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="methodname"><a href="regexiterator.getflags.html" class="methodname" rel="rdfs-seeAlso">RegexIterator::getFlags()</a> - Get flags</span></li>
   </ul>
  </p>
 </div>

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